Results 91 to 100 of about 6,955,994 (297)
FEBS Letters, EarlyView.Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
wiley +1 more source
Pattern classes of permutations via bijections between linearly ordered sets [PDF]
, 2008 A pattern class is a set of permutations closed under pattern involvement or, equivalently, defined by certain subsequence avoidance conditions. Any pattern class X which is atomic, i.e.
Ruskuc, Nikola +3 more
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Geometries on partially ordered sets
Journal of Combinatorial Theory, Series B, 1980 AbstractGeometries on finite partially ordered sets extend the concept of matroids on finite sets to partially ordered sets. Geometries are defined in terms of closure operators on partially ordered sets. The lattice of closed sets is semimodular, and every finite semimodular lattice is isomorphic to the lattice of closed sets of some geometry.
openaire +3 more sources
On Sums Over Partially Ordered Sets [PDF]
The Electronic Journal of Combinatorics, 1999 We establish a general theorem for reducing sums of type $\sum_{y\ge x} g(y)$ where $g$ is a mapping from a partially ordered set into an abelian group. Conclusions concern the Möbius function, the principle of inclusion-exclusion, the Tutte polynomial and Crapo's beta invariant.
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Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
The number of graded partially ordered sets
, 1969 We find an explicit formula for the number of graded partially ordered sets of rank h that can be defined on a set containing n elements. Also, we find the number of graded partially ordered sets of length h, and having a greatest and least element that ...
Klarner, D.A.
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Searching in random partially ordered sets
Theoretical Computer Science, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Renato Carmo +3 more
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FEBS Letters, EarlyView.Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise +5 more
wiley +1 more source
Generalized Dehn-Sommerville Relations for Polytopes, Spheres and Eulerian Partially Ordered Sets
, 1983 Generalized Dehn-Sommerville Relations for Polytopes, Spheres and Eulerian Partially Ordered ...
Bayer, M., Billera, L.
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A logic of soft constraints based on partially ordered preferences [PDF]
, 2006 Representing and reasoning with an agent\u27s preferences is important in many applications of constraints formalisms. Such preferences are often only partially ordered.
Wilson, Nic
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